Abstract
The equilibrium contact and the kinetics of adherence of flat-ended spheres, under an imposed applied load, in contact with the flat and smooth surface of a soft elastomer sample (natural rubber) are examined with the help of concepts from fracture mechanics. The variation of the dissipation function Φ = (G − w)/w, where G is the strain energy release rate and w is the Dupré energy of adhesion, is studied as a function of the crack propagation speed V at the interface between the flat-ended sphere and the elastic solid. As expected, a master curve Φ(V) is found, confirming the variation of Φ as the 0.55 power function of V, which Barquins and Charmet established recently in adherence experiments with the same rubber-like material.
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Schedule a callMore From: Comptes Rendus de l'Academie des Sciences Series IIB Mechanics Physics Astronomy
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